OBDII diagnostic interface



FIG. 1 is a top, front and right perspective view of an OBDII diagnostic interface showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom, rear and left perspective view thereof.

The broken lines depict portions of the OBDII diagnostic interface in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for an OBDII diagnostic interface, as shown and described. 